ASTROSAT CZTI

Data Quality Report

Orbit 46106

Creation date: 2024-06-27T23:19:18.330481
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C07_001T10_9000006170_46106cztM0_level2.fits modeM0/AS1C07_001T10_9000006170_46106cztM0_level2_quad_clean.evt
Size (bytes)1,823,800,320268,361,280
Size1.7 GB 255.9 MB
Events in quadrant A16,158,8391,925,238
Events in quadrant B9,542,8512,016,436
Events in quadrant C8,231,0521,980,880
Events in quadrant D32,116,039899,022

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0594153
B0409463
C0386783
D01083953

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03820
B03820
C03820
D03820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A189145632.976631%
B189154182.209886%
C189151870.988633%
D18915995852.646048%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 20049 18919 15 15 0.07% 0.08%
B 20050 18920 40 40 0.20% 0.21%
C 20050 18920 13 13 0.06% 0.07%
D 20050 18920 8518 8518 42.48% 45.02%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 7759031 18096.55 2068 2021 428.6
A 7 3 195880 452.26 2068 2021 428.6
A 14 235 109748 251.32 2068 2021 428.6
B 3 112 571164 1412.85 2075 2005 402.8
B 0 190 410201 1013.28 2075 2005 402.8
B 5 255 104316 253.97 2075 2005 402.8
C 3 233 103722 213.89 2054 2060 475.3
C 14 254 69876 142.68 2054 2060 475.3
C 12 2 32263 63.55 2054 2060 475.3
D 2 37 19482233 56396.17 1346 1297 345.4
D 1 52 4096077 11854.15 1346 1297 345.4
D 5 235 971575 2808.9 1346 1297 345.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter